Heney m



(No Model.) 8

H. M. RYDER.

WRENCH.

PatentedApr. 3, 1888. B531.

NITED Srn'rns PATENT,

HENRY M. RYDER, OF TAUNTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO LLOYDE. "WHITE, OF SAME PLACE.

. WRENCH.

SPECIFICATION forming part of Letters Patent No. 380,353, dated April 3,1888.

Application filed October 10, 1887.

Taunton, in the county of Bristol and Comnonwealth of Massachusetts,have invented a new and useful Combined Hub and rench, of which thefollowing is a specification, reference being had to the accompanyingdrawings, which form apart hereof.

The object of my invention is a hub and wrench which can be so combinedthat the wheel may be readily removed from the axle without detachingthe nut from its seat in the huh. I

My invention consists in a hub having an annular slotted flange upon theinside near its outer end, in combination with a wrench composed ofaheadhavinga diminished socket portion adapted to pass inside the annularflange and fit on the nut, and spring-jaws with levers pivoted in theside of the head, the jaws being formed with a neck to fit in the slotof the annular flange, and a cross-piece on the end hav ing a shoulderor clutch, so that when the wrench is fitted over the nut and the wheelis rotated to bring the neck of the jaw against the slot in the flangeit will lock itself, and the backward rotation of the wheel will unscrewthe nut without loosening it from its seat.

In the drawings, Figure 1 is a longitudinal vertical section through thewrench, hub, and axle,with the wrench fitted on the nut, and the jawsclutched uuderthe flange before being locked. Fig. 2 is a similarsection when the wheel has been partially revolved to bring the necks ofthejawsin the slots of the flange. Fig. 3 is an end view of the hub andaxle, showing the slotted flange on the inside of the hub. Fig. 4 is anouter end view of the wrench, and Fig. 5 an inner end view. Fig. 6 is alongitudinal section of the wrench with the jaws closed, and Fig. 7 is asimilar section when the jaws are open. Fig. 8 is a side view of thehead of the wrench with the jaws removed. Fig. 9 is an outside view ofone of the jaws and levers.

The hub-band A is formed with an inside annular flange, a, having in theedge notches or slots (4.

The wrench consists of a head having a socket-piece, B, of diametersmall enough to pass inside the annular flange a of the band,

Serial No. 251,957. (No model.)

and having a socket to fit the nut E. The outer end of the head has arim, 2), of greater outside diameter than the inside diameter of theflange a, to prevent the head from passing entirely through. In the edgeof this rim 1) are pivoted the levers D of thejaws. A spring,

d, holds the jaws open when not compressed. Each jaw is formed with aneck, (1, and a crosspiece having a shoulder, at, to clutch the un- 6oder side of the flange c, and tapering toward the end for convenience inpassing it through the flange. The socket-piece B is preferably madeslightly tapering, and with recesses b in extension of the slots b,within which the le- 6 vers are pivoted to receive the jaws, so thatwhen closed they may be brought flush with the surface, except theshoulder d,which may project slightly. The arms of the levers are formedwith bows a", for convenience in hand ling. The end of the cylinder oraxle-box 9 forms aseat for the nut E, the flange 6 serving as a guard.

In operation, when it is desired to remove the wheel, the wrench istaken by the bows d 7 5 like a pair of scissors, and thelevers arespread apart, thus closing the jaws into the recesses b, and enabling itto pass inside the flange and fit over the nut. It is only necessary tohave the socket square with the not without regard to the relativeposition of the slots a. The fin gers are removed from the levers, andthe springs d partially open the jaws, as shown in Fig. 1, so that theshoulder d bears up against the flange a, to prevent the wrench 8 5 fromslipping out, but does not cause it to turn with the wheel. The wheel isnow partially rotated in either direction to bring the necks a? againstthe slots to, when the springs cl open the jaws still farther, throwingthe necks (1* 0 into the slots, thus locking the wrench and preventingfurther rotation of the wheel withoutthe wrench and nut turning at thesame time with it,while, the cross-piece being longer than the slot, thejaw will notslip out endwise. The 9 5 wheel is now rotated backward,carrying around with it the wrench and nut all looked together, and thenut is unscrewed, leaving the wheel free to be removed, the wrench andnot still being locked in the hub. When the wheel is to be replaced uponthe axle, the hub is pushed on until the end of the spindleenters thenut,when the wheel is rotated in the reverse direction from that bywhich it was unscrewed, the nut and wrench being again rotated with thewheel until the nutis screwed on. Thej mm of the wrench are then closedby spreading the levers and the wrench is easily removed.

What Iclaixn as my invention is- The combination of ahnb having anannular slotted flange upon the inside, and a wrench composed ofaheadformed with a diminished socket portion to pass inside the flange andfit over the nut, and spring-jaws with levers pivoted in the side of thehead, the jaws being the slots in the flange the springs will throw thenecks into the slots and lock the wrench, nut, 20

and hub together, substantially as described.

HENRY M. RYDER.

Witnesses:

E. A. HOXIE, W. A. PAINE.

